Results 121 to 130 of about 10,562 (252)
NIPPON KAGAKU KAISHI, 1989 光照射によって生じたジメチン型メロシアニン(MD)の光異性体が,安定体にもどる速度過程を4種の誘導体について測定し,熱異性化速度定数(ka),活性化エネルギー(Ea)に対する複素環効果とプロトンの触媒作用の機構について調べた。kdは複素環の種類,とくに硫黄の導入数によって5ケタもの差となって現われた。溶媒の種類およびpHの変化によって島はいちじるしく変わるが,Eaはほとんど変わらないこと,Arrheniusの頻度因子はほとんど複素環効果を示さないことなどから,異性化の中間体としてプロトン化メロシアニンが重要な役割を果たしており,かつ,活性化エネルギーはプロトン移動過程の障壁ではなくプロトン付加体の内部回転の障壁を反映しているという結論を得た ...
Hitoshi FUNAKOSHI +5 more
openaire +2 more sources
The application of 7H-indolo[1,2-a]quinolinium merocyanine as a new water sensor in organic solvents
Chemické zvesti, 2017 The 7H-indolo[1,2-a]quinolinium merocyanine was applied as a new water sensor in organic solvents such as ethanol, propane-1-ol, propane-2-ol, DMSO, and DMF.
M. Sawicka, E. Wróblewska
semanticscholar +1 more source
Carbohydrate Polymer Technologies and ApplicationsThe effect of β-cyclodextrin (βCD) and its 2-hydroxypropyl, sulfate, and sulfobutyl derivatives was studied to reveal how the host-guest binding influenced the reversible photochromic reactions and the hydrolysis of a trans-merocyanine (trans-MC) dye in ...
Zsombor Miskolczy +3 more
doaj +1 more source
Scientific Reports, 2018 Stability and integration are the goals for developing photonic devices. Spirooxazines have the property of photoinduced merocyanine-aggregation in polymer matrix, which can be applied to fluorescence emission and stable information storage.
Ruiya Ji +6 more
semanticscholar +1 more source
Next MaterialsPhotochromic molecules like spiropyran are known to impart a diverse range of responsive characteristics to polymeric materials to transform them into functional polymeric materials for use in a variety of applications.
Priya Ranjan Sahoo +3 more
doaj +1 more source
Spectroscopic Study of Host-Guest Inclusion Complexes [PDF]
, 2012 A host-guest complex is formed by a host molecule encapsulating a guest molecule within it. The host materials in this study are basket-shaped structures, known as cyclodextrins, which can easily incorporate a variety of guests, such as drug molecules ...
Holt, Jennifer, Lucas, Jenessa
core +1 more source
Studies on the sperm reservoir of the pig oviduct [PDF]
, 2003 During sperm transport in the female pig a proportion of spermatozoa are arrested, often for 24 h or more, in a particular segment of the utero-tubal junction (UTJ) and the adjacent tubal isthmus, where a sperm reservoir (SR) is built up.
Tienthai, Paisan
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Spirooxazine Photoisomerization and Relaxation in Polymer Matrices
International Journal of Polymer Science, 2011 9′-Hydroxy-1,3,3-trimethylspiro[indoline-2,3′[3H]naphtha[2,1-b]-1,4oxazine] (SPO-7OH) was used in studies of photochromic transformations in polymer matrices.
Maria Larkowska +2 more
doaj +1 more source
Electrochemistry CommunicationsThe characterization and discrimination of chemical compounds is imperative in both academia and industry, but currently relies on expensive and/or bulky instrumentation.
Emer B. Farrell +2 more
doaj +1 more source
Spiropyran modified microfluidic chip channels for photonically controlled sensor array detection of metal ions [PDF]
, 2008 Microfluidic chips are particularly attractive for analytical purposes because they provide a convenient small platform for rapid analysis and detection.1 Furthermore, spiropyrans dyes can be used as photonically controlled, self-indicating molecular ...
Benito-Lopez, Fernando +5 more
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